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                | 結構 | 描述 | 邏輯關系 | 物理存儲(HDFS) | | --- | --- | --- | --- | | Database | 數據庫 | 表的集合 | 文件夾| | Table | 表 | 行數據的集合 | 文件夾 | | Partition | 分區 | 用于分割數據 | 文件夾| | Buckets | 分桶 | 用于分布數據 | 文件 | | Row | 行 | 行記錄 | 文件中的行| | Columns | 列 | 列記錄 | 每行中指定的位置 | | Views | 視圖 | 邏輯概念,可跨越多張表 | 不存儲數據| | Index | 索引 | 記錄統計數據信息 | 文件夾|
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